. >> sreenivasan: former cycling great lance armstrong was back at the center of a media storm today. it was widely reported that he has now publicly admitted to doping. armstrong's statements came in an interview with oprah winfrey taped monday. she did not release direct quotations or sound. instead on cbs this morning she said armstrong had been forth coming. >> i felt that he was thoughtful. i thought that he was serious. i thought that he certainly had prepared himself for this moment. i would say that he met the moment. at the end of it, two-and-a-half... literally two-and-a-half hours, we both were pretty exhausted. i would say i was satisfied. >> sreenivasan: at the same time winfrey said armstrong did not come clean in the matter that i expected. the interview came several months after the u.s. anti-doping agency issued a damning 1,000-page report that accused armstrong of master minding, quote, the most sophisticated professionalized and successful doping program that sports has ever seen. while he led the u.s. service team. since then armstrong has been banned from professi